Electronic-mail apparatus
Electronic-mail apparatus
Electronic-mail apparatus
Electronic-mail apparatus
Electronic-mail apparatus
Electronic-mail apparatus
Elevator car modem with transhybrid rejection
Emergency interrupt technique
Enabling and powering of remotely actuated bypass splitters
Enabling incoming VoIP calls behind a network firewall
Enabling legacy interactive voice response units to accept...
Enhanced broadband telephony services
Ensemble modem structure for imperfect transmission media
Ensemble modem structure for imperfect transmission media
Ensemble modem structure for imperfect transmission media
Entrance communication system
Entry door answering telephone system
Entry of alphabetical characters into a telephone system using a
Entry phone apparatus and method with improved alphabetical...
Equipment for facsimile call service of telephone exchange